CN102797273B - Pilot-pressure acquisition system and method of excavator working device and excavator - Google Patents
Pilot-pressure acquisition system and method of excavator working device and excavator Download PDFInfo
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- CN102797273B CN102797273B CN201210328913.7A CN201210328913A CN102797273B CN 102797273 B CN102797273 B CN 102797273B CN 201210328913 A CN201210328913 A CN 201210328913A CN 102797273 B CN102797273 B CN 102797273B
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Abstract
The invention discloses a pilot-pressure acquisition system and a method of an excavator working device and an excavator, and relates to an excavator control system. The pilot-pressure acquisition system comprises a controller, a two-input and one-output pressure sensor and a switch, wherein the controller is connected with an execution device of the excavator; the switch is switched on by pressure control; the two input ends of the pressure sensor are respectively connected on the pilot pipelines for reciprocating two actions of a working mechanism for executing the reciprocating actions in the excavator working device so as to detect the pilot pressure for reciprocating two actions of the working mechanism; the output end of the pressure sensor is connected with a first input port of the controller by the switch, and is directly connected with a second input port of the controller; and the pressure control end of the switch is connected with one of the pilot pipelines for reciprocating two actions of a working mechanism connected with the pressure sensor. The technical scheme disclosed by the invention has the advantages that the used number of the pilot pressure sensors is reduced, and the use rate is increased; the influence to the original machine is less, the reliability is increased and the fault occurrence is reduced.
Description
Technical field
The present invention relates to a kind of excavator control system, relate in particular to a kind of digger operating device pilot pressure acquisition system and method and excavator.
Background technology
Existing hydraulic crawler excavator is generally converted to signal of telecommunication input control device by the force signal that swing arm promotes, swing arm declines, dipper unloads, dipper excavates, scraper bowl unloads, scraper bowl excavates the lifting of six pilot pressure sensors collection swing arms, swing arm declines, dipper unloads, dipper excavates, scraper bowl unloads, scraper bowl excavates six pilot pressures, and controller is by transmitting control signal to control the action of swing arm, dipper, scraper bowl to these six signal of telecommunication judgements.
Due to two actions that can not promote and decline of the swing arm of excavator simultaneously, so the in the situation that of the normal work of excavator, swing arm lifting and swing arm decline pilot pressure sensor can only have at most one output signal, in like manner dipper unloading and dipper excavation also can only have at most one output signal, scraper bowl unloading and scraper bowl excavation pilot pressure sensor also can only have at most one output signal, therefore makes to cause in this way the waste of pilot pressure sensor resource.
Summary of the invention
The problems referred to above that exist for existing excavator, now provide a kind of digger operating device pilot pressure acquisition system that is intended to reduce pressure sensor setting and excavator hydraulic system is not made a big impact and method and excavator.
Concrete technical scheme is as follows:
A kind of digger operating device pilot pressure acquisition system, wherein, comprises the controller being connected with the actuating unit of excavator, the pressure sensor of dual input list output and the switch of being connected by pressure control;
Two inputs of described pressure sensor are connected in digger operating device one and carry out on the first rodding of reciprocal two actions of the operating mechanism of reciprocating action, in order to the pilot pressure of reciprocal two actions of testing mechanism;
The output of described pressure sensor connects controller the first input port by described switch, and directly connects controller the second input port;
One of them connection of first rodding of reciprocal two actions of the described operating mechanism that the pressure control end of described switch is connected with the input of described pressure sensor.
Preferably, described controller comprises the input port that many groups are independently mainly formed by described the first input port and described the second input port separately, described in every group, described in port correspondence one, described in pressure sensor and, switch is to form a detecting unit, and in each described detecting unit connecting excavator equipment, one carries out the operating mechanism of reciprocating action.
Preferably, the operating mechanism of described execution reciprocating action comprises: carry out swing arm, the execution unloading action of enhancing action and down maneuver and excavate dipper and the execution unloading action of action and excavate the scraper bowl of action.
A control method for digger operating device pilot pressure acquisition system, wherein, comprises above-mentioned digger operating device pilot pressure acquisition system, specifically comprises the steps:
Step a1, described controller judge whether described the first input port or the second input port have input signal, as equal no signal exits;
Step a2, described controller judge whether the first input port has input signal, if any the first rodding of action that is defined as the described operating mechanism being connected with described switch pressure control end, described controller read after the input signal of described the first input port output and the corresponding control instruction of input signal extremely described actuating unit to carry out corresponding action, and exit;
Step a3, as described in the first input port without input signal be defined as not with as described in switch pressure control end be connected as described in the first rodding of action of operating mechanism, described controller read after the input signal of described the second input port output and the corresponding control instruction of input signal extremely described actuating unit to carry out corresponding action, and exit.
A kind of excavator, wherein, adopts the control method of above-mentioned digger operating device pilot pressure acquisition system to control.
The beneficial effect of technique scheme is:
Reduce the use number of pilot pressure sensor, improved the utilization rate of pilot pressure sensor, avoided the waste of resource.
By the simple non-damageable hardware facility for pilot pressure sensor such as switch, electric wire, little on the impact of former machine hydraulic system, increase the reliability of system, reduce the generation of fault.
Accompanying drawing explanation
Fig. 1 is the syndeton schematic diagram of a detecting unit of the embodiment of a kind of digger operating device pilot pressure of the present invention acquisition system;
Fig. 2 is the FB(flow block) of the embodiment of the control method of a kind of digger operating device pilot pressure acquisition system of invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but not as limiting to the invention.
As shown in Figure 1, the embodiment of a kind of digger operating device pilot pressure of the present invention acquisition system, wherein, comprises the controller 1 being connected with the actuating unit of excavator, the pressure sensor 2 of dual input list output and the switch 3 of being connected by pressure control; Two inputs of pressure sensor 2 are connected in digger operating device one and carry out on the first rodding 41 and 42 of reciprocal two actions of the operating mechanism of reciprocating action, in order to the pilot pressure of reciprocal two actions of testing mechanism; The output of pressure sensor 2 connects the first input port 11 of controller 1 by switch 3, and directly connects the second input port 12 of controller 1; First rodding 41 and 42 one of them connection of reciprocal two actions of the operating mechanism that the pressure control end 31 of switch 3 is connected with the input of pressure sensor 2.
The operating principle of technique scheme is, it is to produce hydraulic pressure in the first rodding being connected with the pressure control end 31 of switch 3 that the first input port 11 of the controller 1 connecting by the switch 3 of pressure control break-make can be judged during if any signal, to produce hydraulic pressure in the first rodding not being connected with the pressure control end 31 of switch 3 as the second input port 12 has signal can judge, due to carry out the action of operating mechanism of reciprocating action non-toward and multiple, therefore in the first input port 11 and the second input port 12, can not produce signal simultaneously, as the first input port 11 and the second equal no signal in input port 12 can be judged as this operating mechanism's attonity.
On technique scheme basis, further, controller 1 can comprise the input port that many groups are independently mainly formed by the first input port 11 and the second input port 12 separately, the corresponding pressure sensor 2 of every group of port and a switch 3 to be to form a detecting unit, an operating mechanism that carries out reciprocating action in each detecting unit connecting excavator equipment.
On technique scheme basis, further, the operating mechanism that carries out reciprocating action comprises: carry out swing arm, the execution unloading action of enhancing action and down maneuver and excavate dipper and the execution unloading action of action and excavate the scraper bowl of action.
In embodiments of the invention, also comprise a kind of control method of digger operating device pilot pressure acquisition system, wherein, comprise above-mentioned digger operating device pilot pressure acquisition system, as shown in Figure 2, specifically comprise the steps:
Step a1, controller judge whether the first input port or the second input port have input signal, as equal no signal exits;
Step a2, controller judge whether the first input port has input signal, if any the first rodding of action that is defined as the operating mechanism being connected with switch pressure control end, controller read after the input signal of the first input port output and the corresponding control instruction of input signal to actuating unit to carry out corresponding action, and exit;
Step a3, be defined as the first rodding of the action of the operating mechanism not being connected with switch pressure control end without input signal as the first input port, controller read after the input signal of the second input port output and the corresponding control instruction of input signal to actuating unit to carry out corresponding action, and exit.
In embodiments of the invention, also comprise a kind of excavator, wherein, adopt the control method of above-mentioned digger operating device pilot pressure acquisition system to control.
The foregoing is only preferred embodiment of the present invention; not thereby limit embodiments of the present invention and protection domain; to those skilled in the art; the scheme that being equal to of should recognizing that all utilizations manual of the present invention and diagramatic content done replaces and apparent variation obtains, all should be included in protection scope of the present invention.
Claims (5)
1. a digger operating device pilot pressure acquisition system, is characterized in that, comprises the controller being connected with the actuating unit of excavator, the pressure sensor of dual input list output and the switch of being connected by pressure control;
Two inputs of described pressure sensor are connected in digger operating device one and carry out on the first rodding of reciprocal two actions of the operating mechanism of reciprocating action, in order to the pilot pressure of reciprocal two actions of testing mechanism;
The output of described pressure sensor connects controller the first input port by described switch, and directly connects controller the second input port;
One of them connection of first rodding of reciprocal two actions of the described operating mechanism that the pressure control end of described switch is connected with the input of described pressure sensor.
2. digger operating device pilot pressure acquisition system as claimed in claim 1, it is characterized in that, described controller comprises the input port that many groups are independently mainly formed by described the first input port and described the second input port separately, described in every group, described in port correspondence one, described in pressure sensor and, switch is to form a detecting unit, and in each described detecting unit connecting excavator equipment, one carries out the operating mechanism of reciprocating action.
3. digger operating device pilot pressure acquisition system as claimed in claim 1, it is characterized in that, the operating mechanism of described execution reciprocating action comprises: carry out swing arm, the execution unloading action of enhancing action and down maneuver and excavate dipper and the execution unloading action of action and excavate the scraper bowl of action.
4. a control method for digger operating device pilot pressure acquisition system, is characterized in that, comprises as digger operating device pilot pressure acquisition system as described in arbitrary in claim 1-3, specifically comprises the steps:
Step a1, described controller judge whether described the first input port or the second input port have input signal, as equal no signal exits;
Step a2, described controller judge whether the first input port has input signal, if any the first rodding of action that is defined as the described operating mechanism being connected with described switch pressure control end, described controller read after the input signal of described the first input port output and the corresponding control instruction of input signal extremely described actuating unit to carry out corresponding action, and exit;
Step a3, as described in the first input port without input signal be defined as not with as described in switch pressure control end be connected as described in the first rodding of action of operating mechanism, described controller read after the input signal of described the second input port output and the corresponding control instruction of input signal extremely described actuating unit to carry out corresponding action, and exit.
5. an excavator, is characterized in that, adopts the control method of digger operating device pilot pressure acquisition system as claimed in claim 4 to control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210328913.7A CN102797273B (en) | 2012-09-07 | 2012-09-07 | Pilot-pressure acquisition system and method of excavator working device and excavator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210328913.7A CN102797273B (en) | 2012-09-07 | 2012-09-07 | Pilot-pressure acquisition system and method of excavator working device and excavator |
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| CN102797273A CN102797273A (en) | 2012-11-28 |
| CN102797273B true CN102797273B (en) | 2014-05-28 |
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| CN201210328913.7A Expired - Fee Related CN102797273B (en) | 2012-09-07 | 2012-09-07 | Pilot-pressure acquisition system and method of excavator working device and excavator |
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| CN111174336B (en) * | 2020-01-09 | 2024-04-05 | 珠海格力电器股份有限公司 | Air conditioner external unit, air conditioner and air conditioner control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005325911A (en) * | 2004-05-13 | 2005-11-24 | Shin Caterpillar Mitsubishi Ltd | Controller of fluid pressure circuit |
| JP4855852B2 (en) * | 2006-07-04 | 2012-01-18 | 日立建機株式会社 | Motor controller for construction machinery |
| JP2008032175A (en) * | 2006-07-31 | 2008-02-14 | Shin Caterpillar Mitsubishi Ltd | Fluid-pressure circuit |
| WO2008081843A1 (en) * | 2006-12-26 | 2008-07-10 | Hitachi Construction Machinery Co., Ltd. | Steering system for working vehicle |
| JP5298069B2 (en) * | 2010-05-20 | 2013-09-25 | 株式会社小松製作所 | Electric actuator control device |
| CN102268889A (en) * | 2010-06-07 | 2011-12-07 | 广西柳工机械股份有限公司 | Programmable control rotary braking system of hybrid excavator and control method |
| CN202117105U (en) * | 2010-12-31 | 2012-01-18 | 龙工（上海）挖掘机制造有限公司 | Rotation indicating device of hydraulic excavating machine |
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Inventor after: Tu Xiaodan Inventor after: Liu Mingliang Inventor after: Liang Ya Inventor before: Tu Xiaodan Inventor before: Liang Ya |
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